it doesnt matter....sir derps theory was that (before SO6P) the uzumaki clan was around...everyone had chakra..just didnt knwo hwo to use it.. and than one day the SO6P was born into the uzumaki clan from an uzumaki couple. but that turned out not being true.. his mother who wasnt an uzumaki(the important one, consdiering she was the first and only one with chakra in her clan and any other clan) is enough to say hsi theory was wrong. no matter who his dad is. even if he is an uzumaki. the SO6P didnt get his powers from the uzumaki and he wasnt born into the uzumaki clan...plus chakra wasnt around as we now know. i didnt study sir derps theorys but im sure u can find alot mroe inconsistancey. people seem to forget his theorys were all based off of religion..not many manga facts..Don't forget we don't Know which clan the sage's father belonged too.
didnt mean to double post..sry